1.2 Candidate Profile, Prerequisites & the AZ-104 Requirement

Candidate Profile, Prerequisites & the AZ-104 Requirement

Quick Answer: AZ-305 has no formal prerequisite exam to register for it, but Microsoft will not award the Azure Solutions Architect Expert certification until you have also passed AZ-104 (Azure Administrator Associate). Microsoft's official audience profile expects candidates to already have advanced, hands-on IT-operations experience — the exam tests design decisions built on top of that implementation knowledge, not the implementation steps themselves.

Why This Distinction Matters for Your Prep

Confusing "no registration prerequisite" with "no prerequisite at all" is one of the most common early mistakes candidates make with AZ-305. Because the exam questions assume you already understand how Azure services work operationally, a candidate who jumps into AZ-305 without hands-on Azure administration experience — regardless of whether they have formally passed AZ-104 — will spend most of their study time backfilling implementation basics instead of practicing the trade-off reasoning the exam actually tests. Understanding exactly what Microsoft expects of you up front lets you honestly assess readiness before you spend $165 and 120 minutes finding out the hard way.

The Official Candidate Profile

Per Microsoft's AZ-305 study guide, the audience profile for an Azure solutions architect includes subject-matter expertise designing cloud and hybrid solutions across five areas: compute, network, storage, monitoring, and security. The architect's responsibilities include advising stakeholders and translating business requirements into designs that align with the Azure Well-Architected Framework and the Cloud Adoption Framework (CAF) for Azure. Critically, the architect role is defined as a design role that partners with other job functions to implement those designs, including developers, administrators, security engineers, and data engineers — the architect decides the "what" and "why," and other roles frequently execute the "how."

Beyond the five technical areas above, Microsoft expects candidates to bring advanced experience and knowledge of broader IT operations, specifically: networking, virtualization, identity, security, business continuity, disaster recovery, data platforms, and governance. On top of that operational base, candidates should have direct experience with Azure administration, Azure development, and DevOps processes.

AZ-104 Is a Co-Requisite, Not a Registration Prerequisite

Here is the nuance that trips candidates up: you technically can schedule and sit AZ-305 without already holding AZ-104 — there is no system block preventing registration for either exam independently. But the Azure Solutions Architect Expert certification itself is explicitly defined by Microsoft as requiring passage of both AZ-305 and AZ-104. If you pass AZ-305 first without AZ-104 already on your transcript, you simply will not receive the Expert title until you also clear AZ-104 — Microsoft credits the certification once both exams appear on your record, regardless of which order you took them in. In practice, most candidates earn AZ-104 first anyway, because AZ-305's design questions are written assuming the hands-on configuration knowledge that AZ-104 already tests directly.

AZ-104 vs. AZ-305: "How" Versus "Why and When"

Recommended Background Before You Start

Microsoft's own instructor-led course description for AZ-305T00 (Design Microsoft Azure Infrastructure Solutions) states that successful students already have experience designing and architecting solutions — not just following runbooks — plus prior experience deploying or administering Azure resources. Beyond that, the course assumes conceptual knowledge of Azure compute technologies such as virtual machines, containers, and serverless solutions; Azure virtual networking including load balancers; Azure Storage technologies for both unstructured data and databases; and general application design concepts such as messaging and high availability.

If you are coming into AZ-305 without that hands-on background, plan for more study time than the 60-100 hour range that assumes AZ-104-level experience — lean toward the higher end of Microsoft Learn's published 90-140 hour estimate, and prioritize building labs over passive reading of documentation.

A Realistic Scenario: Two Candidates, Two Starting Points

Candidate A has already passed AZ-104 and has 18 months of hands-on Azure administration experience. When they reach an AZ-305 question about choosing a hybrid identity solution, they already know what Microsoft Entra Connect does operationally — their study time goes toward learning when to recommend Entra Connect Sync versus Cloud Sync versus federation for a specific compliance or latency constraint, not toward learning what each option is in the first place.

Candidate B is a strong on-premises Windows Server administrator who has never opened the Azure portal. They can still register for AZ-305 and, with enough study, answer its individual questions — but they will spend a much larger share of their prep time backfilling implementation-level knowledge (what a Recovery Services vault actually looks like to configure, what a managed identity actually is in practice) before they can reliably reason about the design trade-offs the exam is actually asking about. Because Microsoft will not grant the Expert title without AZ-104 anyway, Candidate B is usually better served earning AZ-104 first: it builds exactly the hands-on foundation AZ-305 assumes, and it is a required credential no matter which exam order is chosen.

Key Takeaways

• AZ-305 has no system-enforced registration prerequisite, but AZ-104 is required before Microsoft grants the Azure Solutions Architect Expert title.
• The official candidate profile expects advanced IT-operations experience across networking, identity, security, business continuity/disaster recovery, data platforms, and governance, plus Azure administration, development, and DevOps exposure.
• AZ-104 tests "how to implement"; AZ-305 tests "why or when to choose" — the same Azure service can appear on both exams with a completely different question angle.
• Candidates without AZ-104-level hands-on experience should budget toward the higher end of the 90-140 hour study range and prioritize hands-on labs over reading alone.
• Most candidates earn AZ-104 before attempting AZ-305, since it builds the exact implementation knowledge the design exam assumes.